Moog Music
Bob Moog started out making theremins and kept the theremin alive into the modern age.
They make great theremins! Moog is longest continuous producer of theremins, and they are easy to work with.

Wavefront Technologies
The Wavefront Classic is a beautiful, hard wood cased, professional theremin. Modeled after the RCA Victor Theremin, and a true
heterodyne theremin with a large coil, it is one of the most musical and responsive instruments
available.